亚洲V日韩V无码一区二区,中文幕无线码中文字蜜桃,国内综合精品午夜久久资源 ,在线 国产 精品 蜜芽,国产精品自产拍高潮在线观看 ,久久久久久亚洲精品成人,亚洲欧美日韩另类丝袜一区,2021国内精品久久久久精免费,国产成人久久精品一区二区三区,高清中文字幕国产精品

廣東Iron powder

  • name: 廣東Iron powder
  • Classification: Iron powder
  • Corporate name: Dada Alloy Co., Ltd
  • Time: 19/07/28
  • Click count:  
Product details

Iron dust is a collection of iron particles with a size less than 1mm. Color: Black. It is the main raw material for powder metallurgy. According to particle size, it is commonly divided into five levels: coarse powder, medium powder, fine powder, ultrafine powder, and ultrafine powder. Particle size ranges from 150 to 500 μ The iron powder composed of particles within the range of m is coarse powder, with a particle size ranging from 44 to 150 μ M is a medium powder, 10-44 μ M is fine powder, 0.5-10 μ M is fine powder, less than 0.5 μ M is ultrafine powder.

Due to its good activity and easy moisture absorption and oxidation, reduced iron powder is often used in food desoxidant . Common specification parameters:

Fe 96% min; Harmful elements meet food grade, with a particle size of 80 or 100 mesh



點(diǎn)擊次數(shù):   更新時(shí)間:19/07/28 10:49:07   【打印此頁】   【關(guān)閉
久久国产高潮流白浆免费观看| 亚洲A∨国产AV综合AV网站| 久久久精品久久久久三级 | 国产午夜精品理论大片| 久久国产精品99夜夜嗨| 亚洲熟女精品一区二区| 巨熟乳波霸若妻在线播放| 国产精品美女久久久m| 国产综合久久99久久| 国产亚洲精品美女久久久M| 日本不卡视频网站| 国产午夜91福利一区二区| 国产美女视频免费一区二区| 丁香花高清电影在线观看完整版| 思思99热| 91啦视频在线观看| 永久免费AV无码网站YY| 中文字幕国产精品一区二| 狠狠的干性视频| 大又大粗又爽又黄少妇毛片| 亚洲a∨精品一区二区三区| 女人下边被添全过视频的网址| 门国产乱子视频观看| 久久久久无码专区亚洲av| 国产视频一区二区三区视频| 国产在线精品欧美日韩电影| 一区二区三区四区亚洲自拍| 精品视频一区二区三区不卡| 精品国产一区二区三区久| 一本大道无码日韩精品影视| 中文字幕乱码中文乱码毛片 | 亚洲国产色一区二区三区| 91精品一区二区三区综合在线| 欧美成a网| 拍国产乱人伦偷精品视频 | 四虎成人精品无码| 亚洲成A人片在线观看的电影| 无码av高潮抽搐流白浆在线| 久久精品国产亚洲av忘忧草18| 国产亚洲天堂另类综合| 久久亚洲第一视频黄色|